feat(netns): bwrap-contained chrome + proton wrapper
- netvm-chrome.sh --contained: bwrap fs jail inside netns (profile home only + vault ro at /tmp/vault, Chromium sandbox stays on) - netvm-proton.sh: run proton-cli as the profile identity in netns + jail (config dir + static binary, PROTON_NO_INPUT=1)
This commit is contained in:
operator
@@ -119,7 +119,8 @@ veth IPs aren't routable off the host and Warp forwards no inbound traffic.
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- `bin/netvm-fleet.sh` — operator fleet control over the tailnet (topology/up/down/ssh/exec/cdp per node).
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- `bin/netvm-exec.sh <node> -- <cmd>` — run a command inside the node's netns as the invoking user (the agent-friendly primitive).
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- `bin/netvm-enter.sh` — root worker behind netvm-exec/netvm-chrome (allowlisted; enters netns, fixes DNS, drops privs).
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- `bin/netvm-chrome.sh <profile> [url]` — launch a chrome-box profile in its netns (CDP on by default; --headless for agents).
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- `bin/netvm-chrome.sh <profile> [url]` — launch a chrome-box profile in its netns (CDP on by default; --headless for agents; --contained adds a bwrap fs jail inside the netns: profile home only + vault read-only at /tmp/vault, Chromium sandbox stays on).
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- `bin/netvm-proton.sh <profile> -- <args>` — run proton-cli as the profile's Proton identity (1:1:1 profile = node = warp identity = proton-cli profile) inside the netns + bwrap jail (config dir + static binary only, PROTON_NO_INPUT=1). Human creates the session once: `proton-cli -p <profile> account login`.
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- `bin/netvm-cdp.sh <profile>` — print the CDP endpoint + SSH forward.
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- `bin/netvm-cdp-relay.py` — veth-IP→loopback TCP relay for CDP (pidfile-supervised).
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- `bin/netvm-names.sh` — shared naming: netns, hashed iface tags, veth subnet, CDP port.
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+45
-5
@@ -1,15 +1,18 @@
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#!/usr/bin/env bash
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# netvm-chrome.sh [--headless] [--cdp-port N|--no-cdp] <profile> [url]
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# netvm-chrome.sh [--headless] [--cdp-port N|--no-cdp] [--contained] <profile> [url]
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# Launch a chrome-box profile inside its dedicated NetVM netns.
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# 1:1: profile = node = warp identity = egress IP.
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# CDP is on by default (deterministic port) so agents can automate the
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# session via Playwright/Puppeteer; --headless runs without a display.
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# --contained adds a bwrap filesystem jail INSIDE the netns (no net unshare):
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# the browser sees only its own profile home (+ vault read-only). Chromium's
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# own sandbox stays on (we never pass --no-sandbox to it).
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# Run as your normal user (uses sudo -n only for allowlisted netns ops).
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set -euo pipefail
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NETVM_BIN="$(cd "$(dirname "$0")" && pwd)"
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. "$NETVM_BIN/netvm-names.sh"
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WAYPIPE=0; HEADLESS=0; CDP_OVERRIDE=""; NO_CDP=0; PROFILE=""; URL=""
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usage() { echo "usage: netvm-chrome.sh [--waypipe] [--headless] [--cdp-port N|--no-cdp] <profile> [url]"; }
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WAYPIPE=0; HEADLESS=0; CDP_OVERRIDE=""; NO_CDP=0; PROFILE=""; URL=""; CONTAINED=0
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usage() { echo "usage: netvm-chrome.sh [--waypipe] [--headless] [--cdp-port N|--no-cdp] [--contained] <profile> [url]"; }
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while [ $# -gt 0 ]; do
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case "$1" in
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--waypipe) WAYPIPE=1; shift;;
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@@ -17,6 +20,7 @@ while [ $# -gt 0 ]; do
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--cdp-port) CDP_OVERRIDE="$2"; shift 2;;
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--cdp-port=*) CDP_OVERRIDE="${1#*=}"; shift;;
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--no-cdp) NO_CDP=1; shift;;
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--contained) CONTAINED=1; shift;;
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-h|--help) usage; exit 0;;
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*) if [ -z "$PROFILE" ]; then PROFILE="$1"; elif [ -z "$URL" ]; then URL="$1";
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else echo "unexpected: $1"; usage; exit 1; fi; shift;;
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@@ -51,8 +55,44 @@ LAUNCH_ARGS=(launch "$PROFILE" --no-sandbox)
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[ -n "$CDP" ] && LAUNCH_ARGS+=(--cdp-port "$CDP")
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[ -n "$URL" ] && LAUNCH_ARGS+=("$URL")
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[ -n "$CDP" ] && echo "cdp: http://$PEER_IP:$CDP/json/list (local) | ssh -L $CDP:$PEER_IP:$CDP <user>@<tail-ip> (remote)"
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CMD=("$CHROME_BOX" "${LAUNCH_ARGS[@]}")
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if [ "$CONTAINED" = 1 ]; then
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# Contained mode execs Chromium directly (same flags chrome-box uses for a
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# native launch) because chrome-box re-resolves its profile dir from $HOME,
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# which the jail replaces. Direct Warp egress: no proxy flags by design.
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command -v bwrap >/dev/null 2>&1 || { echo "bwrap not found" >&2; exit 1; }
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P_HOME="$HOME/.local/share/chrome-box/profiles/$PROFILE"
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mkdir -p "$P_HOME/.config/chromium"
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KEYRING="$(python3 -c "import json,sys;print(json.load(open('$P_HOME/config.json')).get('keyring','basic'))" 2>/dev/null || echo basic)"
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SB_DIR="$(dirname "$CHROME_BOX")"
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BWRAP=(bwrap --unshare-uts --unshare-ipc --die-with-parent
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--ro-bind / / --dev /dev --proc /proc --tmpfs /tmp --tmpfs /dev/shm
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--bind "$P_HOME" "$HOME" --setenv HOME "$HOME" --setenv PATH /usr/bin:/bin)
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[ -d "$HOME/notes" ] && BWRAP+=(--ro-bind "$HOME/notes" /tmp/vault)
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[ -f "$SB_DIR/hosts-sandbox.conf" ] && BWRAP+=(--ro-bind "$SB_DIR/hosts-sandbox.conf" /etc/hosts)
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[ -f "$SB_DIR/nsswitch-sandbox.conf" ] && BWRAP+=(--ro-bind "$SB_DIR/nsswitch-sandbox.conf" /etc/nsswitch.conf)
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CHROMIUM=(/usr/lib/chromium/chromium
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"--user-data-dir=$HOME/.config/chromium"
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"--password-store=$KEYRING"
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--ozone-platform=x11 --disable-gpu --disable-quic
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--disable-features=DnsOverHttpsUpgrade,AsyncDns
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--built-in-dns-client-enabled=false)
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if [ "$HEADLESS" = 1 ]; then
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BWRAP+=(--unsetenv DISPLAY --unsetenv WAYLAND_DISPLAY --unsetenv XDG_RUNTIME_DIR)
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CHROMIUM+=(--headless=new)
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else
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[ -d /tmp/.X11-unix ] && BWRAP+=(--ro-bind /tmp/.X11-unix /tmp/.X11-unix)
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[ -n "${WAYLAND_DISPLAY:-}" ] && [ -S "$XDG_RUNTIME_DIR/$WAYLAND_DISPLAY" ] && \
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BWRAP+=(--ro-bind "$XDG_RUNTIME_DIR/$WAYLAND_DISPLAY" "$XDG_RUNTIME_DIR/$WAYLAND_DISPLAY")
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[ -n "${XDG_RUNTIME_DIR:-}" ] && [ -d "$XDG_RUNTIME_DIR/pulse" ] && BWRAP+=(--bind "$XDG_RUNTIME_DIR/pulse" /run/pulse)
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[ -n "${XDG_RUNTIME_DIR:-}" ] && [ -S "$XDG_RUNTIME_DIR/bus" ] && BWRAP+=(--ro-bind "$XDG_RUNTIME_DIR/bus" /run/dbus/system_bus_socket)
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fi
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[ -n "$CDP" ] && CHROMIUM+=(--remote-debugging-port="$CDP" --remote-allow-origins='*')
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[ -n "$URL" ] && CHROMIUM+=("$URL")
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CMD=("${BWRAP[@]}" -- "${CHROMIUM[@]}")
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fi
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if [ "$WAYPIPE" = 1 ]; then
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exec waypipe --compress=lz4 run -- sudo -n "$NETVM_BIN/netvm-enter.sh" "$NODE" "$(id -u)" "$(id -g)" "$HOME" -- "$CHROME_BOX" "${LAUNCH_ARGS[@]}"
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exec waypipe --compress=lz4 run -- sudo -n "$NETVM_BIN/netvm-enter.sh" "$NODE" "$(id -u)" "$(id -g)" "$HOME" -- "${CMD[@]}"
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else
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exec sudo -n "$NETVM_BIN/netvm-enter.sh" "$NODE" "$(id -u)" "$(id -g)" "$HOME" -- "$CHROME_BOX" "${LAUNCH_ARGS[@]}"
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exec sudo -n "$NETVM_BIN/netvm-enter.sh" "$NODE" "$(id -u)" "$(id -g)" "$HOME" -- "${CMD[@]}"
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fi
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Executable
+36
@@ -0,0 +1,36 @@
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#!/usr/bin/env bash
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# netvm-proton.sh <profile> -- <proton-cli args...>
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# Run proton-cli as the profile's Proton identity, inside the profile's netns
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# (Warp egress) and inside a bwrap filesystem jail.
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# 1:1:1: profile = node = warp identity = proton-cli profile.
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# Human creates the session once: proton-cli -p <profile> account login.
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# (Credential setup itself belongs to pix; see proton-ingest design D6.)
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set -euo pipefail
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NETVM_BIN="$(cd "$(dirname "$0")" && pwd)"
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NODE="${1:?usage: netvm-proton.sh <profile> -- <proton-cli args...>}"; shift
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[ "${1:-}" = "--" ] && shift
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[ $# -gt 0 ] || { echo "usage: netvm-proton.sh <profile> -- <proton-cli args...>"; exit 1; }
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[ -f "/etc/netvm/${NODE}.conf" ] || { echo "no warp identity for '$NODE' (human: netvm-new-identity.sh $NODE)"; exit 1; }
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command -v bwrap >/dev/null 2>&1 || { echo "bwrap not found" >&2; exit 1; }
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command -v proton-cli >/dev/null 2>&1 || { echo "proton-cli not found" >&2; exit 1; }
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PCLI_HOME="$HOME/.config/proton-cli"
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[ -d "$PCLI_HOME" ] || { echo "no proton-cli config dir (human: proton-cli account login)"; exit 1; }
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PCLI_BIN="$(readlink -f "$(command -v proton-cli)")"
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[ -x "$PCLI_BIN" ] || { echo "proton-cli binary not executable: $PCLI_BIN"; exit 1; }
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# Jail: whole home is tmpfs except the proton-cli config (rw: sessions refresh,
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# logs), the resolved static binary (ro), and a scratch tmp. proton-cli needs
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# nothing else on disk.
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BWRAP=(bwrap --unshare-uts --unshare-ipc --die-with-parent
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--ro-bind / / --dev /dev --proc /proc --tmpfs /tmp --tmpfs /dev/shm
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--tmpfs "$HOME" --dir "$HOME/.config"
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--bind "$PCLI_HOME" "$HOME/.config/proton-cli"
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--ro-bind "$PCLI_BIN" /tmp/proton-cli
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--setenv HOME "$HOME" --setenv PATH /usr/bin:/bin
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--setenv PROTON_PROFILE "$NODE"
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--setenv PROTON_NO_INPUT 1
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--unsetenv DISPLAY --unsetenv WAYLAND_DISPLAY --unsetenv XDG_RUNTIME_DIR)
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exec sudo -n "$NETVM_BIN/netvm-enter.sh" "$NODE" "$(id -u)" "$(id -g)" "$HOME" \
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-- "${BWRAP[@]}" -- /tmp/proton-cli "$@"
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